James h



v (No Model.)

J. H. SHEEHAN.

NUT LOCK.

Patented July 31. 1883.

UNITED STATES PATENT OFFICE.

JAMES H. SHEEHAN, or BANGOR, MAINE, ASSIGNOR or ONE-HALF T0 EZRA L. srnnns,

0F SAME PLACE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 282,383., dated July 31, 1883. Application filed May 19, 1863." (No model.)

To all whom it may concern: 3

. Beit known that I, JAMES H. SHEEHAN, of

Bangor, in the county of Penobscot and State of Maine, have invented certain new and use ful Improvements in Nut-Locks; and I do hereby declare that the following is a full, clear, and exact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming apart of this specification, in which- Figure 1 shows an isometrical perspective of my invention as attached to a rail and fishplate; Fig. 2, an end view.

Same letters show like parts.

My invention consists of an improved nutlock constructed of flexible metal, and will be readily understood by reference to the annexed drawings.

Ata is shown a rail, 6, showingt-he fishplate; 0, the bolt, and d the nut.

At 6 is my nut-lock, provided with an aperture, f, through which the bolt passes, and

having a fold or joint at g, and a second aperture, h, fitting over the nut cl. The bolt being inserted in its place, the lock is slipped over it and the nut screwed 011, holding the plate 6 securely in position. The fold of the lock isthen bent up, passing over the nut and preventing its rotation.

' When ledges i i, projecting over the fish-plate b, are used, the edges of the lock may be made to fit between them, preventin g any movement; but when, asin some cases, the fish-plate and edges of the rail are flush with each other I bend. the top or bottom of my nut-lock plate over the fish-plate, as atj. The folded portion turning over the 'edgeof the fish-plate, as shown, and the part c of the nut-lock beingsecurely held to the fish-plate by the bolt and nut cl, it is evident that anytendency of the nut'lock to rotate will be resisted by the folded portion j,- but it will be readily understood that from the nature of my lock it can easily be fitted to or secured in various localities with but slight trouble.

If additional security against the rotation of the nut is desired, I purpose to bend up the edges of the aperture h in the nut-lock 6, so

as to inclose the sides of the nut, giving it a greater bearing-surface. Detail A illustrates this feature, the turned-up sides being shown at It.

When my device is used upon a wooden surface. the stationary part Z of the lock may be secured, if desired, by nails or screws.

For convenience in illustration the sides is are shown as turned up toward the fold; but it will be understood that they may be turned downward, if desired.

I do not claim a nut-lock made in two parts and provided with a connecting-hinge.

One great advantage of my lock arises from the fact that it is made of thin flexible mareadily fitted and adapted to positions in which the ordinary nut-lock could notbe used.

I do not claim the devices shown in the patent of Elliot, No. 77,180, April 28, 1868, in which a plate-metal slieet is shown aspassing under and up on each side of the rail, thereby forming a fish-plate as well as a nut-lock.

nary fish-plate, and the lock is kept from rotation by fitting between the flanges of the rail, thus requiring much less metal and being more readily put in place or removed.

What I claim as my invention is 1. In combination with a rail and fish plate, the nut-lock 6, formed of flexible metal, and provided with apertures f h and fold 9, all its parts being upon the outside of said fish-plate, the portion next the fish-plate being held in positionby the bolt and nut and prevented from turning by butting under the projecting ledges i of the rail, substantially as herein set forth.

2. The-nutlock 6, provided with the apertures f h, fold g, and bent portion j, as and for the purposes described.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day of May, 1883.

. JAMES H. SHEEHAN.

WVitnesses:

W. A.- Bron,

WM. FRANKLIN SEAVEY.

terial and is capable of being quickly and My device is intended for use with the ordi- 

